Commercial flat roof repair · Clear Lake, Houston
Commercial flat roof repair in Clear Lake, Houston TX.
Mammoth Services repairs commercial flat roofs in Clear Lake, Houston: seams, flashings, penetrations, drainage, and wet insulation on TPO, PVC, modified bitumen, built-up, and coated low-slope roofs. Mammoth finds what failed, repairs it to match the system, and tells you honestly whether the roof has more repairs in it.
GAF GoldEliteCommercial Contractor- 42Yearsof combined team experience
- In-house crewsSkilledroofing mechanics
TIPSContract 24060401
The short answer
How Mammoth Services repairs a Clear Lake flat roof.
A commercial flat roof is a low-slope roof with just enough pitch to drain. A flat roof repair usually means a failed seam, flashing, or penetration, a drain that backs up, or insulation that has soaked up water and keeps leaking after the rain stops.
Mammoth Services traces the leak from inside to the roof, maps any wet insulation, removes and replaces wet material, and repairs the membrane with compatible materials. You get written findings with photos. If the roof needs re-roofing or a recover instead, that work needs a City of Houston commercial roofing permit, and Mammoth Services handles it.
Planning a replacement? See commercial roofing contractor in Clear Lake.
Each membrane fails its own way
Know the roof, then fix it.
A repair only lasts if it is made with compatible materials and the right method for the system on the roof.
- TPO
Heat-welded single-ply
We look for open or weak welded seams, punctures from foot traffic and dropped tools, and flashing that has pulled away at curbs and walls. Repairs are heat-welded where the membrane allows.
- PVC
Single-ply over exhaust and process areas
Similar seam and flashing checks, plus attention to areas around exhaust and equipment where contaminants collect.
- MOD BIT
Multi-ply modified bitumen
Open laps, blisters, cracked or eroded surfacing, and worn flashings at walls and curbs.
- BUR
Built-up roofing
Blisters, splits, bare areas where surfacing has worn, and deteriorated base flashings.
- COATING
Coated roofs
Worn or peeling coating, failures over seams and penetrations, and water trapped below. Recoating only helps a roof that is dry and sound.
The water you cannot see
Wet insulation decides the repair.
On a flat roof the surface can look fine while the insulation underneath holds water. Patching the membrane over wet insulation traps the problem instead of fixing it.
Trace the path
We match where water appears inside to roof features above and upslope: units, curbs, drains, walls, and penetrations.
- When does it leak: every rain, wind-driven rain, or after equipment service
- Interior locations marked against the roof plan
Find the extent
We check suspect areas for soft insulation and trapped moisture, where the system allows, so the repair covers the whole wet area and not just the visible hole.
- Seams, flashings, and penetrations checked in order
- Wet and soft areas mapped and photographed
Repair to match
Wet material is removed and replaced, and the repair is made with materials compatible with your membrane. You get written findings with photos.
- Compatible materials and methods for the system
- Findings you can use for budgeting and planning
Gulf rain and wind
Drainage is half the repair.
Low-slope roofs here take heavy Gulf rain and tropical wind. During Hurricane Beryl the National Weather Service recorded a 75 mph peak gust at Clear Lake Park in Seabrook. After storms like that, drains clog and edges lift.
Drains and scuppers
Cleared, checked, and repaired so water leaves the roof instead of backing up over flashings.
Ponding areas
Low spots corrected with crickets or tapered insulation where a repair alone will not keep water moving.
Edges after wind
Lifted edge metal and loose perimeters secured before the next storm drives water under them.
Source: National Weather Service Houston/Galveston, Hurricane Beryl 2024 summary.
Repair, restore, or replace
An honest answer about your roof.
Some roofs need one repair. Some need a restoration. Some are past both. We show you what we found so you can decide.
Repair
Localized failures on a roof that is otherwise dry and sound.
Restore
A coating or restoration system over a roof that still has a sound, dry assembly. When coating fits, and when it does not.
Replace or recover
Widespread wet insulation, worn membrane, or repeat leaks. Inside Houston this needs a commercial roofing permit with plan review and inspection. Commercial roofing in Clear Lake.
Source: Houston Permitting Center, Commercial Roofing Permit and Roofing Overlay Only Worksheet (CE-1104).
Keep it from coming back
Repairs, recorded.
Through Roof React, Roof React RAMP adds scheduled inspections and preventive maintenance, and Roof Passport keeps every repair, photo, and warranty detail in one record.
Questions
Flat roof repair in Clear Lake: direct answers.
If your question is not here, call Mammoth Services at (832) 416-1566.
- 01
What counts as a commercial flat roof?
A commercial “flat” roof is a low-slope roof with just enough pitch to drain. Most commercial flat roofs are single-ply TPO or PVC, modified bitumen, built-up, or a coated roof.
- 02
Is ponding water on a flat roof a problem?
Yes, when water sits long after rain. Ponding stresses the membrane and finds any weak seam or flashing. Mammoth Services corrects drainage with crickets or tapered insulation where a repair alone will not keep water moving.
- 03
Can a wet flat roof be recovered instead of replaced?
Usually not where the insulation is wet. Houston’s overlay worksheet expects insulation that is not water soaked and a sound deck, so Mammoth Services removes and replaces wet areas first or recommends replacement.
- 04
Does a flat roof repair in Clear Lake need a City of Houston permit?
Clear Lake is inside Houston. The Houston Permitting Center requires a commercial roofing permit for a new roof or an overlay. If a Clear Lake repair grows into re-roofing or a recover, Mammoth Services tells you and handles the permit.
Next step
Flat roof leaking?
Call Mammoth Services at (832) 416-1566 for an active leak, or request a repair visit and tell us what you are seeing. For planned work, book a roof assessment call.